Floating touch display device

Abstract

The disclosure provides a floating touch display device which includes a capacitive touch panel, a display device, an interval layer, and an optical-lens structure. The capacitive touch panel is configured to provide a floating touch surface at a floating height above a first surface. The display device includes a second surface, and the display device is configured to provide a display image from the second surface. The optical-lens structure is disposed between the capacitive touch panel and the display device. The interval layer is disposed between the second surface and the optical-lens structure, and a first optical distance is between the second surface and the optical-lens structure. The optical-lens structure is configured to image the display image on the floating touch surface at a second optical distance, and the first optical distance is equal to the second optical distance.

What is claimed is: 
     
       1. A floating touch display device, comprising:
 a capacitive touch panel comprising a first surface, wherein the capacitive touch panel is configured to provide a floating touch surface at a floating height above the first surface; 
 a display device comprising a second surface, wherein the display device is configured to provide a display image at the second surface; 
 an optical lens structure disposed between the capacitive touch panel and the display device; and 
 an interval layer disposed between the second surface and the optical lens structure to space the second surface and the optical lens structure at a first optical distance, 
 wherein the optical lens structure is configured to image the display image on the floating touch surface at a second optical distance, and the first optical distance is equal to the second optical distance. 
 
     
     
       2. The floating touch display device of  claim 1 , wherein the floating height is 3 to 10 centimeters. 
     
     
       3. The floating touch display device of  claim 1 , wherein the first optical distance is in a range of 2.4 to 4 centimeters. 
     
     
       4. The floating touch display device of  claim 1 , wherein the optical lens structure comprises a light incident surface and a light emitting surface, and the light incident surface and the light emitting surface comprise a plurality of micro-lens structures. 
     
     
       5. The floating touch display device of  claim 4 , wherein a width of each of the micro-lens structures is less than or equal to 850 micrometer. 
     
     
       6. The floating touch display device of  claim 4 , wherein the light incident surface of the optical lens structure faces the second surface of the display device, and the light emitting surface of the optical lens structure faces a surface of the capacitive touch panel opposite to the first surface of the capacitive touch panel. 
     
     
       7. The floating touch display device of  claim 1 , wherein the optical lens structure is configured to image the display image on the floating touch surface at the second optical distance to generate a floating image, and the first optical distance is equal to the second optical distance such that the display image and the floating image are a same size. 
     
     
       8. The floating touch display device of  claim 1 , wherein the interval layer comprises:
 an interval structure, wherein the interval structure is disposed along edges of the optical lens structure and the display device, and a gap is between the optical lens structure and the display device. 
 
     
     
       9. The floating touch display device of  claim 1 , further comprising:
 an electromagnetic interference suppression layer disposed between the capacitive touch panel and the optical lens structure. 
 
     
     
       10. A floating touch display device, comprising:
 a capacitive touch panel configured to provide a floating touch surface; 
 a display device configured to provide a display image; 
 an optical lens structure, wherein the capacitive touch panel is disposed between the optical lens structure and the display device; and 
 an interval layer disposed between the display device and the optical lens structure to space the display device and the optical lens structure at a first optical distance, 
 wherein the optical lens structure is configured to image the display image on the floating touch surface at a second optical distance, and the first optical distance is equal to the second optical distance.